Re: Help using convert-ly recursively on Linux

[Dmytro O. Redchuk]

On Fri 03 Sep 2010, 07:39 Ralph Palmer wrote:
> Greetings -
> 
> I'm running LilyPond on Ubuntu 9.10 (Karmic Koala).
> 
> I'd like to run convert-ly against all of my .ly files that I have created,
> without having to manually change directories to each directory that
> contains a file I want to convert, and then run convert-ly against the files
> in that directory. "convert-ly -e *.ly" works in a single directory, but I
> can't figure out how to get it to work recursively through multiple
> directories. Assuming all the .ly files I have created are in a single
> directory hierarchy, like:
> /SheetMusic
>     /Classical
>         /Bach
>             /ArtOfTheFugue
>             /SoloCelloSuites
>         /Beethoven
>             /Sonatas
>             /StringQuartets
>         /Mozart
>     /FolkMusic
>         /NorthAmerican
>         /EasternEuropean
> and that the directory structure might change (while always beginning from a
> single parent directory), can anyone either point me in the right direction
> or share a script file (preferably python or bash, since I'm more likely to
> understand what's going on with those) to run convert-ly recursively on the
> files each and all of the directories under /SheetMusic?

I would start with smth like this:

$ find . -type d | xargs -L 1 convert_all_here

`find' will print all directories from current dir and below.

`convert_all_here' could be like this:

#------------8<--------------------------
for ly in *.ly; do
        if [ -e $ly ] ; then
                convert-ly $ly > ${ly%%.ly}_converted.ly
        fi
done
#------------8<--------------------------

Not tested (sorry), but something like this should work.

-- 
  Dmytro O. Redchuk
  Bug Squad